Episode 1
Episode 1
Former President George Mullen's comfortable retirement is upended after he's asked to lead an investigation into a horrific cyberattack.
TV series
Zero Day
2025TV-MA1 season7.0 / 10
Truth has been weaponized.
A former U.S. President is called out of retirement to find the source of a deadly cyberattack, only to discover a vast web of lies and conspiracies.
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Where to watch in United States
Checked Jul 22, 2026
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Synopsis
A former U.S. President is called out of retirement to find the source of a deadly cyberattack, only to discover a vast web of lies and conspiracies.
Season 1 episodes
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Episode 2
Episode 2
Mullen's commission investigates a hacking ring. President Mitchell weighs retaliation. A powerful figure has demands for Roger.
Episode 3
Episode 3
Mullen's initial arrests draw blowback from the public — especially TV pundit Evan Green. Alex faces pressure to investigate her father.
Episode 4
Episode 4
A shock to the financial system increases scrutiny on Mullen's commission. Valerie investigates Proteus. Roger must make a difficult choice.
Episode 5
Episode 5
A personal tragedy reopens old wounds for the Mullen family. Speaker Dreyer pushes for a change in leadership. Sheila testifies before Congress.
Episode 6
Episode 6
A new threat creates further unrest across the nation. As he narrows in on the culprit, Mullen is faced with an agonizing decision.
Episode information updated Jul 22, 2026
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